Ren's vowed to bring out Ryoma's potential, but is once again pushed back by an enemy stronger than Sakura—Dark Usurper Zeus. 
With even Kamui and Napoleon struggling, Ren remembers words Akira has spoken in the past. 
And then...?
Who was that girl just now?
Habe ich da eine Mädchenstimme gehört?
¿Quién es esa chica
que acaba de hablar?
¿Acaso he oído una voz de chica?
C’était qui cette fille ?
Quem era a garota?